I think this message came to me by accident. Mainframetech (Chris)
-----Original Message----- From: owner-pygame-us...@seul.org [mailto:owner-pygame-us...@seul.org] On Behalf Of Lenard Lindstrom Sent: Monday, November 30, 2015 1:50 AM To: pygame-users@seul.org Subject: Re: [pygame] `pygame`: on Ubuntu, using `pygame.image.save` to save PNG causes `pygame.error: SavePNG: could not create png write struct` Hi, On 15-11-29 12:25 PM, rockac...@gmail.com wrote: > A possible solution is to compile pygame yourself on that machine. > See the website for details, but its not very involved on ubuntu. > > I do most of my Pygame development on Ubuntu 14.04 (Linux Mint 17.1). Of course I build it myself, and have it passing all the tests. You will need the following development packages installed: libpython2.7-dev (or libpython3.4-dev), libsdl1.2-dev, libsdl-ttf2.0-dev, libsdl-image1.2-dev, libsdl-mixer1.2-dev, libfreetype6-dev, libpng12-dev, libjpeg8-dev, libportmidi-dev, and libX11-dev (for the scrap module). Building and installing is as simple as downloading the source, then in the source directory doing python config.py python setup.py install --prefix=where-you-want-it-to-go If you want the docs, you will also need to install the python-sphinx package and run python makeref.py before the "python setup.py ..." > > On Nov 29, 2015, at 11:38, Brian Merchant <bhmerch...@gmail.com > <mailto:bhmerch...@gmail.com>> wrote: > >> Hi all, >> >> I am now on Ubuntu. I did not have this issue when running the same >> script on Windows. >> >> Here's the error I am getting: >> >> File "/home/alien/cncell/core/animator.py", line 413, in >> create_animation_from_data >> pygame.image.save(screen, image_fp) >> pygame.error: SavePNG: could not create png write struct >> >> >> When `pygame.image.save` is first called, `libpng` produces the >> following warning: >> >> > libpng warning: Application built with libpng-1.2.51 but running >> with 1.6.17 >> >> >> Some things I have tried: >> >> 1) can I load PNGs? yes >> >> 2) results of `python -m pygame.tests`: >> >> ====================================================================== >> FAIL: BaseModuleTest.test_get_error >> ---------------------------------------------------------------------- >> Traceback (most recent call last): >> File >> "/home/brian/anaconda2/lib/python2.7/site-packages/pygame/tests/base_ >> test.py", >> line 569, in test_get_error >> e) >> AssertionError: Failed to access the SoundFont >> /usr/share/sounds/sf2/FluidR3_GM.sf2 >> This is the installed SDL_mixer library complaining about missing FluidSynth sound patch files. It can be ignored. >> ====================================================================== >> FAIL: BaseModuleTest.test_set_error >> ---------------------------------------------------------------------- >> Traceback (most recent call last): >> File >> "/home/brian/anaconda2/lib/python2.7/site-packages/pygame/tests/base_ >> test.py", >> line 586, in test_set_error >> e) >> AssertionError: Failed to access the SoundFont >> /usr/share/sounds/sf2/FluidR3_GM.sf2 >> ====================================================================== >> ERROR: GL_ImageSave.test_image_save_works_with_opengl_surfaces >> ---------------------------------------------------------------------- >> Traceback (most recent call last): >> File >> "/home/brian/anaconda2/lib/python2.7/site-packages/pygame/tests/image >> __save_gl_surface_test.py", line 37, in >> test_image_save_works_with_opengl_surfaces >> pygame.image.save(screen, tmp_file) >> error: SavePNG: could not create png write struct >> ====================================================================== >> ERROR: ImageModuleTest.testSavePNG24 >> ---------------------------------------------------------------------- >> Traceback (most recent call last): >> File >> "/home/brian/anaconda2/lib/python2.7/site-packages/pygame/tests/image >> _test.py", >> line 215, in testSavePNG24 >> pygame.image.save(surf, f_path) >> error: SavePNG: could not create png write struct >> ====================================================================== >> ERROR: ImageModuleTest.testSavePNG32 >> ---------------------------------------------------------------------- >> Traceback (most recent call last): >> File >> "/home/brian/anaconda2/lib/python2.7/site-packages/pygame/tests/image >> _test.py", >> line 184, in testSavePNG32 >> pygame.image.save(surf, f_path) >> error: SavePNG: could not create png write struct >> ====================================================================== >> ERROR: ImageModuleTest.test_save >> ---------------------------------------------------------------------- >> Traceback (most recent call last): >> File >> "/home/brian/anaconda2/lib/python2.7/site-packages/pygame/tests/image >> _test.py", >> line 248, in test_save >> pygame.image.save(s, temp_filename) >> error: SavePNG: could not create png write struct >> ====================================================================== >> ERROR: ImageModuleTest.test_save_colorkey >> ---------------------------------------------------------------------- >> Traceback (most recent call last): >> File >> "/home/brian/anaconda2/lib/python2.7/site-packages/pygame/tests/image >> _test.py", >> line 275, in test_save_colorkey >> pygame.image.save(s, temp_filename) >> error: SavePNG: could not create png write struct >> ====================================================================== >> ERROR: ImageextModuleTest.test_save_unicode_path >> ---------------------------------------------------------------------- >> Traceback (most recent call last): >> File >> "/home/brian/anaconda2/lib/python2.7/site-packages/pygame/tests/image >> ext_test.py", >> line 65, in test_save_unicode_path >> imageext.save_extended(im, temp_file) >> error: SavePNG: could not create png write struct >> ---------------------------------------------------------------------- >> Ran 708 tests in 28.894s >> FAILED (failures=2, errors=6) >> >> The results of these tests makes me think that the issue is unlikely >> to be due to issues specific to the porting of my code from Windows >> to Ubuntu (so for instance, I have tried to fix pathnames, etc. >> wherever possible, and the `pygame` tests should be platform >> independent, but still fail?). >> >> What should I do to fix this issue? >> >> Kind regards, >> Brian >> >> Hope this is of some help, Lenard Lindstrom
